Is your chart up-to-date?

My straight line distance to thecabinet is 280m and the cable must cross the road twice as the pole I'm fed from is over the road and the cabinet is the same side. My Plusnet line rate is shown as 77.4 Mbps and SamKnows tests show a maximum daily average of 73/18. 300m on that chart is estimating 45/17

Yes it is profile 17a but takes into account a fairly pessimistic level of cross talk
You may be blessed with thicker copper and low levels of cross talk

You think we estimate slow, there are those convinced that VDSL2 ends at 350m

1. Best Effort Test: -provides background information.

Download Speed
35.61 Mbps

0 Mbps 38.72 Mbps
Max Achievable Speed

Download speedachieved during the test was - 35.61 Mbps
For your connection, the acceptable range of speedsis 20 Mbps-38.72 Mbps .
Additional Information:
IP Profile for your line is - 38.72 Mbps

2. Upstream Test: -provides background information.

Upload Speed
9.07 Mbps

0 Mbps 10 Mbps
Max Achievable Speed

Upload speed achieved during the test was - 9.07Mbps
Additional Information:
Upstream Rate IP profile on your line is - 10 Mbps


We were unable to identify any performance problem with your service at this time.
It is possible that any problem you are currently, or had previously experienced may have been caused by traffic congestion on the Internet or by the server you were accessing responding slowly.
If you continue to encounter a problem with a specific server, please contact the administrator of that server in the first instance.

You've been provisioned on 40/10 (unlimited allowance) because of your low estimate. If you contact them, I suggest through the Community Forums, they will move you onto 80/20.

I'm 600m from the cabinet as well. See the connections speeds in my sig. Speedtest results are a bit lower course.

Thanks Roberto! I just spoke to PlusNet and he told me he's just changed the provisioning. I ran another BTW test while he was on the line and...

1. Best Effort Test: -provides background information.

Download Speed
35.52 Mbps

0 Mbps 38.72 Mbps
Max Achievable Speed

Download speedachieved during the test was - 35.52 Mbps
For your connection, the acceptable range of speedsis 20 Mbps-38.72 Mbps .
Additional Information:
IP Profile for your line is - 38.72 Mbps

2. Upstream Test: -provides background information.

Upload Speed
8.95 Mbps

0 Mbps 10 Mbps
Max Achievable Speed

Upload speed achieved during the test was - 8.95Mbps
Additional Information:
Upstream Rate IP profile on your line is - 10 Mbps

I told him and he said that maybe the exchange can't handle 80/20. So he put a request in with BT Openreach to change my provisioning at the exchange, apparently.

Yes, it takes up to a couple of days I believe.

It will be a setting from somebody's control panel in Openreach I expect. Nowhere near the exchange Just a job queue.

Great, thanks Roberto

It seems to have been done. But not much improvement...

1. Best Effort Test: -provides background information.

Download Speed
36.35 Mbps

0 Mbps 69.72 Mbps
Max Achievable Speed

Download speedachieved during the test was - 36.35 Mbps
For your connection, the acceptable range of speedsis 55.78 Mbps-69.72 Mbps .
Additional Information:
IP Profile for your line is - 69.72 Mbps

2. Upstream Test: -provides background information.

Upload Speed
16.51 Mbps

0 Mbps 20 Mbps
Max Achievable Speed

Upload speed achieved during the test was - 16.51Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

That looks like it's still being limited by your Plusnet line speed - check here. Give them a nudge.

Here's what it says on that page:

Estimated line speed:
35Mb (Download speed could vary depending on line conditions. Estimates are the maximum speeds that your phone line can support. These speeds are dependent on the package you choose.) - Checked on 2014-03-17 15:39:37
Current line speed:
38.6 Mb